[GROOVY-10996] Compilation issue in Groovy 4

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.18, 4.0.12
• Component/s: Compiler
• Assignee: Eric Milles
• Reporter: Marat Kamalov
• Created: 29/Mar/23 15:28
• Updated: 23/Aug/23 09:07
• Resolved: 18/Apr/23 16:29

Description

We migrate the application to Groovy 4 and got an issue:

1) We use GroovyClassLoader to load *.groovy written classes to a classloader

2) Before the migration we used Groovy 3.0.15.

3) After the migration to 4.0.10 I've got the following error:

Only classes and closures can be used for attribute 'value' in @org.openl.rules.ruleservice.core.annotations.ServiceExtraMethod
 @ line 18, column 30.
       @ServiceExtraMethod(value = org.openl.generated.services.ServiceExtraMethodHandler2Impl.class)
                                ^ 

4) If the annotation definition changed from @ServiceExtraMethod(value = org.openl.generated.services.ServiceExtraMethodHandler2Impl.class) to @ServiceExtraMethod(value = org.openl.generated.services.ServiceExtraMethodHandler2Impl) then the code is compiled successfully.

Why does the compilation start to fail with .class? I can't reproduce the same issue on IntelliJ IDEA.

Can you suggest what to try? Is it expected for Groovy to stop supporting .class in Groovy 4?

Issue Links

• is related to: GROOVY-8184 Class constant withouts .class in annotation value resolves as VariableExpression
• is related to: GROOVY-10571 Stub generator misses sibling classes in annotation